fix(connections): correct deployment naming per mk-labs convention

Deployment name: connections → signal-cli-rest-api (what it IS)
Service name: connections (unchanged - Epcot-themed role)

Updated labels throughout deployment and service selector to match.

cluster/platform/connections/deployment.yaml

@@ -1,10 +1,10 @@
 apiVersion: apps/v1
 kind: Deployment
 metadata:
-  name: connections
+  name: signal-cli-rest-api
   namespace: connections
   labels:
-    app.kubernetes.io/name: connections
+    app.kubernetes.io/name: signal-cli-rest-api
     app.kubernetes.io/component: messaging-gateway
     app.kubernetes.io/version: "0.85"  # Pin version initially
 spec:
@@ -13,11 +13,11 @@ spec:
     type: Recreate  # Prevents dual mount of PVC
   selector:
     matchLabels:
-      app.kubernetes.io/name: connections
+      app.kubernetes.io/name: signal-cli-rest-api
   template:
     metadata:
       labels:
-        app.kubernetes.io/name: connections
+        app.kubernetes.io/name: signal-cli-rest-api
         app.kubernetes.io/component: messaging-gateway
     spec:
       containers:

cluster/platform/connections/service.yaml

@@ -14,4 +14,4 @@ spec:
     protocol: TCP
     name: http
   selector:
-    app.kubernetes.io/name: connections
+    app.kubernetes.io/name: signal-cli-rest-api